Add flag to disable impl-side painting

webkit/compositor_bindings/web_content_layer_impl.cc

 // Copyright 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "webkit/compositor_bindings/web_content_layer_impl.h"
 
 #include "base/command_line.h"
 #include "cc/content_layer.h"
 #include "cc/picture_layer.h"
 #include "cc/switches.h"
 #include "third_party/WebKit/Source/Platform/chromium/public/WebContentLayerClient.h"
 #include "third_party/WebKit/Source/Platform/chromium/public/WebFloatPoint.h"
 #include "third_party/WebKit/Source/Platform/chromium/public/WebFloatRect.h"
 #include "third_party/WebKit/Source/Platform/chromium/public/WebRect.h"
 #include "third_party/WebKit/Source/Platform/chromium/public/WebSize.h"
 #include "third_party/skia/include/utils/SkMatrix44.h"
 
 using namespace cc;
 
 namespace WebKit {
 
 static bool usingPictureLayer()
 {
-    return CommandLine::ForCurrentProcess()->HasSwitch(cc::switches::kEnableImplSidePainting);
+    return cc::switches::IsImplSidePaintingEnabled();
 }
 
 WebContentLayerImpl::WebContentLayerImpl(WebContentLayerClient* client)
     : m_client(client)
 {
     if (usingPictureLayer())
         m_layer = make_scoped_ptr(new WebLayerImpl(PictureLayer::create(this)));
     else
         m_layer = make_scoped_ptr(new WebLayerImpl(ContentLayer::create(this)));
     m_layer->layer()->setIsDrawable(true);
@@ skipping 47 matching lines @@
 {
     if (!m_client)
         return;
 
     WebFloatRect webOpaque;
     m_client->paintContents(canvas, clip, m_layer->layer()->canUseLCDText(), webOpaque);
     opaque = webOpaque;
 }
 
 } // namespace WebKit